WO2013045047A1 - Dispositif de formage de récipients par emboutissage - Google Patents

Dispositif de formage de récipients par emboutissage Download PDF

Info

Publication number
WO2013045047A1
WO2013045047A1 PCT/EP2012/003928 EP2012003928W WO2013045047A1 WO 2013045047 A1 WO2013045047 A1 WO 2013045047A1 EP 2012003928 W EP2012003928 W EP 2012003928W WO 2013045047 A1 WO2013045047 A1 WO 2013045047A1
Authority
WO
WIPO (PCT)
Prior art keywords
punch
ring
punch ring
carrier
intermediate element
Prior art date
Application number
PCT/EP2012/003928
Other languages
German (de)
English (en)
Inventor
Dick Cornelius VERBEEK
Harry Johan Kettelarij
Original Assignee
Amcor Flexibles Zutphen B.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Amcor Flexibles Zutphen B.V. filed Critical Amcor Flexibles Zutphen B.V.
Priority to US14/348,809 priority Critical patent/US20140234469A1/en
Publication of WO2013045047A1 publication Critical patent/WO2013045047A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/10—Stamping using yieldable or resilient pads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
    • B29C51/082—Deep drawing or matched-mould forming, i.e. using mechanical means only by shaping between complementary mould parts
    • B29C51/085—Deep drawing or matched-mould forming, i.e. using mechanical means only by shaping between complementary mould parts with at least one of the shaping surfaces being made of resilien material, e.g. rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/20—Deep-drawing
    • B21D22/26—Deep-drawing for making peculiarly, e.g. irregularly, shaped articles

Definitions

  • the invention relates to a device for forming deep-drawn containers according to the preamble of claim 1.
  • a device is known from WO 2011/012196 A1.
  • an existing of elastic material punch body is provided in the form of a punch ring, which is vulcanized either on a punch carrier or connected by means of an insert with the punch carrier.
  • the punch body is not only axially fixed or positioned relative to its position relative to the punch carrier, but moreover also in a plane perpendicular to the direction of movement of the punch carrier or punch tool.
  • the special shape of the known device can be used to produce deep-drawn containers with high dimensional accuracy, which in particular can be stacked particularly well with one another, which simplifies the handling of the containers produced from a deformable material web.
  • the punch ring has a relatively high volume. This leads to the use of the known device, in particular high cycle numbers that relatively heated by the deformation on the web on the punch ring deformation energy of the punch ring due to its shape changes (compression and subsequent relaxation), and this heat also on other components of the device , in particular the stamp body, transmits. This results in disadvantages in terms of
  • CONFIRMATION COPY Shape and volume stability of the device In addition, the known punch ring on a relatively complex shape, which is reflected in an increased production cost and thus relatively high production costs. Furthermore, it has a relatively large deformability due to the relatively high height in the axial direction, which complicates the exact setting of the thermoforming forces.
  • the invention has the object, a device for molding deep-drawn containers according to the preamble of claim 1 such that in particular the mechanical and thermal properties of the punch ring can be improved.
  • This object is achieved in a device for molding deep drawn containers with the features of claim 1 according to the invention that the punch ring is arranged to punch carrier in a plane perpendicular to the direction of movement of the punch carrier movable.
  • the punch ring is arranged to punch carrier in a plane perpendicular to the direction of movement of the punch carrier movable.
  • the punch ring has the ability to position itself in a plane parallel to the punch carrier or change its position (slightly). This creates the possibility to produce a punch ring with respect to the prior art reduced height, and thus in particular reduced volume.
  • the peripheral wall of the punch ring is flat.
  • the punch ring is axially prepositioned on the punch carrier by means of an insert connected to the punch carrier, which has a mushroom-shaped enlargement on the side facing the punch ring which is tapered trained end face of the punch ring cooperates.
  • the punch ring is positioned in a desired setpoint position.
  • an annular intermediate element is arranged between the punch carrier and the punch ring.
  • the annular intermediate element consists in particular of metal or of the same material as the punch carrier.
  • the aforementioned self-centering of the punch ring is made possible to punch carrier, it is preferably provided in the latter variant when using an intermediate element, that the intermediate element on the side facing the punch ring has a conical end face with a cone angle between OGrad and 20Grad, and that the front side facing end face of the punch ring is also formed conically with a cone angle between OGrad and 20Grad.
  • the punch ring has a reduced overall height compared with the prior art.
  • the punch carrier has a circumferential wall with a conically shaped region in the direction of the punch ring.
  • the diameter of the punch carrier in the direction of the container bottom is reduced or minimized, so that it is avoided that the punch carrier passes in the area of the punch ring in direct abutment contact of the outer wall of the container.
  • FIG. 1 shows a device for forming rotationally symmetrical, deep-drawn containers from a deformable material web in a longitudinal section
  • FIG. 2 shows a punch carrier of a punch tool, as used in the apparatus of FIG. 1, in longitudinal section,
  • FIG. 3 shows an intermediate plate of a punch tool according to FIG. 1, in longitudinal section, FIG.
  • Fig. 4 shows a punch ring according to the invention, as used in the stamping tool of FIG. 1, in longitudinal section
  • Fig. 5 is an insert, as used in a stamping tool of FIG. 1, in longitudinal section and
  • FIG. 6 a deep drawn by means of the apparatus of FIG. 1 container, also in longitudinal section.
  • the containers 1 produced by means of the device 100 have a conical shape with a Container bottom 2, a circumferential container wall 3 and a radially in the plane of the opening portion of the container 1 outwardly projecting container edge 4, which may be formed in a modification to the shape shown in FIG. 6 as a rolled container edge 4.
  • the containers 1 are made of a deformable material web 5 containing, for example, an aluminum substrate.
  • the aluminum substrate is at least one aluminum foil which is coated by lamination and / or extrusion, such as co-extrusion, with, for example, plastics or lacquers.
  • Typical webs 5 may have one of the following two layer constructions, including the layers:
  • the device 100 essentially consists of a die 101, which is arranged movable up and down by means of a drive, not shown, corresponding to the double arrow 102.
  • the die 101 has, on the side facing the material web 5, a recess 103 whose shape is conical in accordance with that of the container 1.
  • the device 100 comprises, in addition to the die 101, a stationarily arranged plunger body 10, which in the exemplary embodiment shown in FIG. 1 has a 4-part design.
  • the punch body 10 has a punch carrier 11 consisting of metal, an annular intermediate element 12, preferably also made of metal, a punch ring 15 made of elastic material, and an insert 16.
  • the punch body 10 may also be formed in three parts.
  • the intermediate element 12 is integrally arranged on the punch carrier 11 or integrally connected thereto.
  • the illustrated in Fig. 2, in particular made of steel punch carrier 11 of the height H is substantially annular and has a peripheral wall 18.
  • the peripheral wall 18 has a side on the side facing away from the punch ring 15 in diameter reduced portion 19, to which a diameter-enlarged portion 20 connects in the direction of the punch ring 15.
  • the section 20 may be either cylindrical throughout, or, as shown in FIG. 2, a first cylindrical portion 21 include, followed by a second conically shaped portion 22 of the height h, the inclination angle ⁇ , for example, between 1 degree and 12 degrees is.
  • the diameter D- ⁇ of the section 20 corresponds to the inner diameter of the container first
  • the punch carrier 11 has in its longitudinal axis 23 a threaded bore 24 for fastening the punch body 10 by means of a fastening screw 42 shown in FIG. 1 on a support element 27, for example a support plate on.
  • the diameter of the threaded bore 24 is larger than the diameter of the fastening screw 42.
  • a plurality of through holes 25, which are preferably arranged at uniform angular intervals relative to one another, are furthermore provided.
  • positioning pins 29 may be used, which serve the correct position positioning of the punch carrier 11 to the support member 27.
  • On the intermediate element 12 side facing the punch carrier 11 has a planar end face 26 formed in the embodiment.
  • the annular intermediate element 12 of the height h 4 has an outer diameter D 2 , which is adapted to the diameter of the punch carrier 11 at its end face 28.
  • a through hole 32 is formed, which is penetrated by the insert 16.
  • the size or the diameter of the through-bore 32 is adapted such that via the through-holes 25 of the punch carrier 11, a connection to the punch ring 15 is made possible to dissipate heat from the region of the punch ring 15.
  • the intermediate element 12 On the side facing the punch ring 15, the intermediate element 12 has a conically shaped end face 33 with a cone angle a 2 between OGrad and 20Grad. Furthermore, it can be provided that the (planar) peripheral wall 34 of the intermediate element 12 is also conical and has an inclination angle 03, which creates a harmonious transition to the punch ring 15.
  • the inclination angle 03 is preferably the same size as the inclination angle ai, that is between 0 ° and 12 °.
  • rotationally symmetrical punch ring 15 may for example consist of natural rubber, an acrylonitrile-butadiene rubber or a urethane rubber or contain at least these materials.
  • stamp body materials are synthetic polyisoprene rubber, styrene-butadiene rubber, hydrogenated nitrile rubber, acrylic rubber, epichlorohydrin rubber, epichlorohydrin-ethylene oxide rubber, chloroprene rubber, polybutadiene rubber, butyl rubber or ethylene-propylene Diene monomers.
  • the hardness of the punch ring 15 in this case is between 50 ShA and 130 ShA, preferably between 70 ShA and 95 ShA.
  • the materials of the punch ring 15 may contain activators and / or accelerators for a later-mentioned vulcanization process, plasticizers or plasticizers, stabilizers, in particular against oxidation and ozone attack, processing aids, tackifiers and / or reinforcing agents or fillers.
  • the punch ring 15 may contain, for example, soot, silica, alumina, chalk or lime.
  • the punch ring 15 can be provided with lubricants, for example fluoride-containing polymers or polyhalo-olefins, such as polytetrafluoroethylene (TEFLON®), ⁇ -boron nitride or graphite, at least on its shaping surface or through the entire punch ring material. Furthermore, dyes are also possible, which make the punch ring 15 appear as desired or required in a desired color.
  • lubricants for example fluoride-containing polymers or polyhalo-olefins, such as polytetrafluoroethylene (TEFLON®), ⁇ -boron nitride or graphite, at least on its shaping surface or through the entire punch ring material.
  • dyes are also possible, which make the punch ring 15 appear as desired or required in a desired color.
  • the punch ring 15 has a through hole 37 in its longitudinal axis 36.
  • the intermediate element 12 facing end face 38 of the punch ring 15 is conical and has a Cone angle ⁇ 4, for example, OGrad to 20Grad, wherein the cone angle 02 and a 4 of the end face 33 of the intermediate member 12 and the end face 38 of the punch ring 15 are preferably identical, but may also be different sizes. It is only essential that a self-centering of the punch ring 15 to the intermediate element 12 is made possible by the choice of the appropriate cone angle 02 and a 4 .
  • the punch ring 15 has a height hi, which is adapted to the size of the container 1 and is for example between 8mm and 50mm.
  • the height hi is selected as low as possible.
  • the height / diameter ratio of the punch ring 15 is preferably between 1: 3 and 1:10.
  • the punch ring 15 On the side facing away from the end face 38, the punch ring 15 has a funnel-shaped depression 39 with a cone angle a 5 and a diameter D3, wherein the two cone angles a 4 and a 5 can be of different sizes, the cone angles a 4 and a 5 values, for example between 0 ° and 20 °.
  • the peripheral wall 40 of the punch ring 15 is planar and may be formed either cylindrically or with a cone angle (not shown) of up to 30 °, depending on the shape of the container 1.
  • the intermediate element 12 and the punch ring 15 are pre-positioned axially by means of the insert 16 shown in FIG. 5 to the punch carrier 1 1 or connected to this by the insert 16 by means of the fastening screw 42 (FIG. 1) is screwed to the support member 27.
  • the insert 16 has a corresponding stepped bore 43 for receiving the fastening screw 42.
  • the insert 16 is provided on the material web 5 side facing with a mushroom-shaped extension 45 with the diameter D 4 , whose Bottom 46 for engagement with the recess 39 of the punch ring 15 is used.
  • the bottom 46 has a cone angle ae of, for example, OGrad to 20Grad, wherein the cone angle a the cone angle a 5 of the recess 39 of the punch ring 15 is adjusted.
  • ae cone angle of, for example, OGrad to 20Grad
  • the material wall 5 comes into abutting contact with the punch body 10.
  • the punch ring 15 in a horizontal plane, that is perpendicular to the longitudinal axis 36 by a (small) degree move, wherein it is centered when immersed in the web 5 on the shape of the recess 103 of the die 101 and on the shape of the end faces on the intermediate member 12 and the punch ring 15.
  • the device 100 or the stamp body 10 described so far can be modified or modified in many ways without deviating from the inventive concept. This consists in a minimization of the volume of the punch ring 15, which has a reduction of the necessary thermoforming and holding forces result. Furthermore, a lesser wear and thus an increased service life of the punch ring 15, at the same time allows simple and cost-effective manufacturability and ease of installation and replacement by the inventive design of the punch ring 15. It is also important that the punch ring 15 is arranged to be movable relative to the punch carrier 1 1 in a horizontal plane.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un dispositif (100) de formage de récipients (1) par emboutissage. Ledit dispositif comprend une matrice (101) munie d'une cavité conique (103) et coopérant avec un corps de poinçon (10) qui vient en liaison active avec une bande de matériau déformable (5) lorsqu'il pénètre dans la matrice (101). Le corps de poinçon (10) est composé d'une bague de poinçon (15) constituée d'un matériau élastique, et d'un porte-poinçon (11). Selon l'invention, la bague de poinçon (15) est agencée de manière mobile par rapport au porte-poinçon (11) dans un plan perpendiculaire à la direction de déplacement (102) du corps de poinçon (10).
PCT/EP2012/003928 2011-10-01 2012-09-20 Dispositif de formage de récipients par emboutissage WO2013045047A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/348,809 US20140234469A1 (en) 2011-10-01 2012-09-20 Apparatus for shaping deep-drawn containers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP11183651.6A EP2574410B1 (fr) 2011-10-01 2011-10-01 Dispositif de formage de récipients emboutis
EP11183651.6 2011-10-01

Publications (1)

Publication Number Publication Date
WO2013045047A1 true WO2013045047A1 (fr) 2013-04-04

Family

ID=46888379

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/003928 WO2013045047A1 (fr) 2011-10-01 2012-09-20 Dispositif de formage de récipients par emboutissage

Country Status (7)

Country Link
US (1) US20140234469A1 (fr)
EP (1) EP2574410B1 (fr)
DK (1) DK2574410T3 (fr)
ES (1) ES2471395T3 (fr)
PL (1) PL2574410T3 (fr)
SI (1) SI2574410T1 (fr)
WO (1) WO2013045047A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2549749A1 (fr) * 1983-07-28 1985-02-01 Toyo Kohan Co Ltd Poincon d'emboutissage de feuilles minces
JPS6188930A (ja) * 1984-10-05 1986-05-07 Toyo Kohan Co Ltd 金属箔の深絞り加工方法
JPS62267028A (ja) * 1986-05-15 1987-11-19 Kishimoto Akira カツプ状体の製造方法
JPS62279034A (ja) * 1986-05-27 1987-12-03 Kishimoto Akira 絞り成形方法及び装置
GB2258181A (en) * 1991-07-20 1993-02-03 Lawson Mardon Sheet metal forming tool and method
WO2011012196A1 (fr) 2009-07-30 2011-02-03 Amcor Flexibles Kreuzlingen Ltd. Dispositif pour former des récipients profondément emboutis
WO2011101218A2 (fr) 2010-02-16 2011-08-25 Jean-Xavier Morin Dispositif destine en particulier a une conversion thermochimique

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2549749A1 (fr) * 1983-07-28 1985-02-01 Toyo Kohan Co Ltd Poincon d'emboutissage de feuilles minces
JPS6188930A (ja) * 1984-10-05 1986-05-07 Toyo Kohan Co Ltd 金属箔の深絞り加工方法
JPS62267028A (ja) * 1986-05-15 1987-11-19 Kishimoto Akira カツプ状体の製造方法
JPS62279034A (ja) * 1986-05-27 1987-12-03 Kishimoto Akira 絞り成形方法及び装置
GB2258181A (en) * 1991-07-20 1993-02-03 Lawson Mardon Sheet metal forming tool and method
WO2011012196A1 (fr) 2009-07-30 2011-02-03 Amcor Flexibles Kreuzlingen Ltd. Dispositif pour former des récipients profondément emboutis
WO2011101218A2 (fr) 2010-02-16 2011-08-25 Jean-Xavier Morin Dispositif destine en particulier a une conversion thermochimique

Also Published As

Publication number Publication date
EP2574410A1 (fr) 2013-04-03
SI2574410T1 (sl) 2014-08-29
DK2574410T3 (da) 2014-07-28
US20140234469A1 (en) 2014-08-21
ES2471395T3 (es) 2014-06-26
PL2574410T3 (pl) 2014-09-30
EP2574410B1 (fr) 2014-04-23

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